Students learn to define and identify organic compounds. Chemical Reactions: Writing Molecular Formulas and an Introduction to Organic Molecules: Students learn to define and identify organic ...

The chemical formula of a covalent molecular substance gives the number of atoms per molecule. The formula of a covalent network or ionic compound gives the simplest ratio of atoms/ions in the ...

For example, the formula H 2 O shows that a water molecule contains two hydrogen atoms and one oxygen atom.

CBSE Class 12 Important Chemical Reactions: The CBSE Class 12 Chemistry exam for 2026 is scheduled for February-March. The exam will cover physical, inorganic, and organic chemistry, so it’s important ...

As the CBSE Class 12 Chemistry exam nears, teachers stress that success depends on calm reasoning, smart time management, and clear presentation, not rote learning alone. High scores come from ...